Furthermore, adaptive immune cell populations such as CD3+ lymphocytes and B220+ B lymphocytes had increased within 21 days post-infection of mock (p < 0.005 and p < 0.001 vs naive, respectively), but not FMT treated mice (n.s. vs naive; p < 0.005–0.001 vs mock; Fig. 5B,D; Supplementary Information). The gene discussed is PTPRC; the disease is infection.